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Measuring the brittle-to-ductile transition temperature of tungsten–tantalum alloy using chevron-notched micro-cantilevers

Abstract:

High-temperature micro-fracture tests of a industrial grade W–1%Ta alloy were performed from room temperature up to 700 °C, using chevron-notched micro-cantilevers. A gradual increase of conditional fracture toughness (KQc) was measured with increasing temperature, and a microscale brittle-to-ductile transition temperature (BDTT) was found at ~600 °C. This is slightly higher than macroscopic three-point bending tests from the same material (~400 °C), and contradicts most literatures for pure ...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.scriptamat.2020.01.030

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
ORCID:
0000-0001-6120-9826
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
ORCID:
0000-0002-5067-5108
Publisher:
Elsevier
Journal:
Scripta Materialia More from this journal
Volume:
180
Pages:
77-82
Publication date:
2020-02-04
Acceptance date:
2020-01-24
DOI:
ISSN:
1359-6462
Language:
English
Keywords:
Pubs id:
1084882
Local pid:
pubs:1084882
Deposit date:
2020-02-04

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